We have a bum-strap that clips to eyes on either side of the stove. You can brace yourself with your feet and the strap behind your bum to work on the stove or on the shelf that comes down over the stove. Works pretty well.
Heading back to Lake Ontario for this summer. Relatively few stops along the way from Grenada. Martinique, Guadeloupe, St. Martin (must have something to do with the French food), then Bermuda, New England and up the Hudson/Erie Canal. We were going to go via Newfoundland and Labrador but June remembered that one of the kids is getting married this summer - details, details!